Materials with long afterglow (LAG) became very renowned in the field of luminescence due to their high ability to store energy. However, the development of LAG phosphors is mostly dependent on rare-earth activators, which are commercially expensive due to their limited availability across the world. On the other hand, LAG phosphors that are not based on rare-earth and are developed as an alternative cannot compete with existing rare-earth LAG phosphors. Copper-doped zinc sulfide (ZnS:Cu)...

This research work presents the development of a triboelectric nanogenerator (TENG) devices utilizing a ZIF-67/PVDF hybrid film and FEP as frictional layers. The ZIF-67/PVDF film was prepared using a solution casting method and exhibited high crystallinity as confirmed by XRD. The average particle size of ZIF-67 powder was found ~ 250 nm. Morphological studies by SEM confirms the incorporation of ZIF-67 in PVDF film. Notably, the incorporation of ZIF-67 particles resulted in an enhanced β-pha...

Exploring different types of materials in triboelectric nanogenerator (TENG) research remains a dynamic and evolving field. This work marks an important milestone in this journey by introducing phosphor material, particularly zinc vanadate (Zn3V2O8, ZVO), into TENG technology for the first time. TENG uses ZVO and silicone films as active triboelectric layers. The fabricated TENG exhibits remarkable performance, producing an output voltage of 515 V and a current of 178 μA, resulting in an impr...

Materials with an extreme lattice thermal conductivity (κl) are indispensable for thermal energy management applications. Layered materials provide an avenue for designing such functional materials due to their intrinsic bonding heterogeneity. Therefore, a microscopic understanding of the crystal structure, bonding, anharmonic lattice dynamics, and phonon transport properties is critically important for layered materials. Alkaline-earth halofluorides exhibit anisotropy from their layered crys...

Lattice thermal conductivity (κL) is of great scientific interest for the development of efficient energy conversion technologies. Therefore, microscopic understanding of phonon transport is critically important for designing functional materials. In our previous study (Roshan et al., ACS Applied Energy Mater. 2021, 5, 882–896), anomalous κL trends were predicted for rocksalt alkaline-earth chalcogenides (AECs). In the present work, we extended it to alkali halides (AHs) and conducted a thoro...

Nanogenerator (NG) is a potential technology that allows to build self-powered systems, sensors, flexible and portable electronics in the current Internet of Things (IoT) generation. Nanogenerators include piezoelectric nanogenerators (PENGs) and triboelectric nanogenerators (TENGs), convert different forms of mechanical motion into useful electrical signals. They have evolved and expanded their applications in various fields since their discovery in 2006 and 2012. Material selection is...

Latent fingerprint (LFP) imaging is critical for crime scene detection and personal data recognition. In law enforcement applications, there is a great need for new materials that are affordable, environmentally friendly, and extremely sensitive. Here, a dual excitable and intense red-emitting oxide-based nanophosphor, Y2SrZnO5:xEu3+ (x = 0–0.4 mol), was successfully synthesized by a self-igniting combustion technique. The phase purity, crystal structure, and lattice parameters were character...

Enhancing the power density of triboelectric nanogenerators (TENGs) poses a significant obstacle to the advancement of self-powered systems. TENGs present numerous advantages such as cost-effectiveness, simplicity in design, and the ability to harness various forms of energy found in nature. Surface modification has emerged as a promising strategy to improve TENG performance, and in this article, an innovative approach is introduced. The ZnO nanosheet surface is modified by synthesizing zeoli...

This paper discusses the environmental problems posed by medical plastic waste produced in healthcare facilities and explores a suitable way to reutilize the waste through triboelectric nanogenerator (TENG) device technology. Remarkably, the study investigates the potential of medical waste saline bottles to create energy-harvesting, health-monitoring devices and tactile, humidity-sensing applications. Saline bottle sheets are used as triboelectric material to fabricate a TENG in vertical con...

A triboelectric nanogenerator (TENG) is a potential technique that can convert waste kinetic energy to electrical energy by contact separation followed by electrostatic induction. Herein, a unique contact point modification technique has been reviewed carefully via the enlargement of the effective surface area of the tribo layer by using a simple and scalable printing method. In this study, the zinc sulfide (ZnS) nanostructure morphology has been introduced directly on an aluminum electrode (...

This study explores using metal–organic framework materials, notably MIL-88 A and BaTiO3, as multifunctional additives within polydimethylsiloxane to boost the performance of triboelectric nanogenerators (TENGs). This novel approach has significantly improved the TENG device’sefficiency, making it an effective triboelectric layer. The developed TENG device produces an open-circuit voltage, short-circuit current, and maximum power density of 486 V, 160μA, and 5.82 Wm 2, respectivel...

Creating sophisticated anti-counterfeiting tags with unique optical characteristics and detailed security attributes is a highly desirable objective to establish a robust authentication capacity across different stimulus modalities. The ability of structured photonic materials to periodically alter their refractive index enables selective diffraction of specific wavelengths and the tuning of optical density states, leading to the discovery of novel optical properties. This fine-tuning...

The increase of plastic waste on the Earth and its associated environmental pollution is a major concern for humankind. The reuse of plastic waste for energy harvesting not only reduces environmental pollution but also generates electricity. In this study, we have used medical plastic waste, such as X-ray films, to fabricate a triboelectric nanogenerator (TENG) for the first time. The proposed TENG produced an output voltage, current, and instantaneous power density of 201 V, 62.8 mA,...

A series of self-assembling gluconamide conjugated naphthalimide amphiphiles (GCNA) was synthesized and the self-assembly of GCNA into gel rendered an increased electron density in naphthalimide moiety with an overall change in energy of 15.33×10 32 J via J-type aggregation. SEM analysis and X-ray diffraction underpinning the nano fibrillar formation, and rheological measurements confirmed the processablity and material fabrication. The enriched electron density in the aggr...

Metal–organic framework (MOF) materials have become a potential candidate in the field of triboelectric nanogenerators (TENGs). However, the direct utilization of MOFs in TENG device technology is still a relatively obscured area, with only a limited number of reports addressing this topic. Instead, most of the existing literature investigated composite materials that combine MOFs with polymers or binder materials for TENG fabrication. However, this method does not accurately reveal the actua...

Herein, we report the effect of ZnO thin film morphology on triboelectric nanogenerator (TENG) performance. The ZnO nanostructures were synthesized by a hot-plate method, which is an easy, inexpensive, low-temperature, and fast- process. We used ZnO film and PET as frictional layers to fabricate the TENG device. ZnO films that were synthesized at various growth temperatures and growth durations were used to test the TENG's output. It was observed that TENG output increased with ZnO films synt...

Small-scale electronic devices need self-powering technology, and one way to do that is to use mechanical energy harvesters. These devices can turn ambient mechanical energy into electricity. Triboelectric nanogenerators (TENGs) are the best choice for converting mechanical energy into electrical energy, but they have a problem in converting ultra-low vibrations in the environment. Traditional TENGs with solid frictional layers are not well-suited for this purpose. To address this limitation,...

A precise sensor to quickly identify glucose concentration is important for diabetic patients. In this study, the silver nanoparticles (Ag NPs) were synthesized by a green method using bamboo leaves extract solution. These Ag NPs were used for the functionalization of bamboo activated carbon (BAC) through chemical route with various weight percentages AgNPs/BAC 1 wt%, AgNPs/BAC 2 wt%, AgNPs/BAC 3 wt%, and these are used as an active modified electrode to fabricate non-enzymatic electrochemica...

Transparent conducting Indium tin oxide (ITO) electrode is predominantly utilized currently in most of the display and energy harvesting devices. However, its sustained usage is an imminent imperil due to its low availability, dwindling supply and recycling issues. There is a dire need to supplement the usage of ITO with appropriate alternatives in desired resistance scale, depending on the device necessity. At this juncture, an analogous viable transparent conducting ultrathin Au/Cu/Ag/Pt/Au...